Non-equilibrium charge noise and dephasing from a spin-incoherent Luttinger liquid
arXiv:cond-mat/0609562 · doi:10.1103/PhysRevB.75.035336
Abstract
We theoretically investigate the charge noise and dephasing in a metallic device in close proximity to a spin incoherent Luttinger liquid with a small but finite current. The frequency dependence of the charge noise exhibits a loss of frequency peaks corresponding to the part of the density correlations in the electron liquid when the temperature is increased from values below the magnetic exchange energy of the electron gas to values above it. The dephasing rate in a nearby metallic nanostructure also shows a cross-over for and may exhibit a non-monotonic temperature dependence. For a range of temperatures the dephasing rate {\em decreases} with increasing temperatures. The proposed experiments provide a convenient approach to probe the spin-incoherent Luttinger liquid and should be implementable in a wide variety of systems.
arXiv comment9 pages, 3 figures
References in corpus (33)
- Shot Noise in Mesoscopic Conductors
- One-Dimensional Fermi liquids
- Observation of the e/3 Fractionally Charged Laughlin Quasiparticles
- Quantum Shot Noise
- Conductance of a quantum wire in the Wigner crystal regime
- Dynamic response of one-dimensional interacting fermions
- Dephasing in a quantum dot due to coupling with a quantum point contact
- Conductance of a quantum wire at low electron density
- Efficiency of Mesoscopic Detectors
- Non-Unitary Spin-Charge Separation in One-Dimensional Fermion Gas
- Charge Fluctuations in Quantum Point Contacts and Chaotic Cavities in the Presence of Transport
- Coulomb drag by small momentum transfer between quantum wires
- Green's function for magnetically incoherent interacting electrons in one dimension
- Localization Transition in a Ballistic Quantum Wire
- Semiclassical Theory of Coherence and Decoherence
- Dephasing and weak localization in disordered Luttinger liquid
- Appearance of fractional charge in the noise of non-chiral Luttinger liquids
- Charge Relaxation and Dephasing in Coulomb Coupled Conductors
- Zero temperature correlation functions for the impenetrable fermion gas
- Coulomb drag between two spin incoherent Luttinger liquids
- Theory of momentum resolved tunneling into a short quantum wire
- Low-temperature crossover in the momentum distribution of cold atomic gases in one dimension
- Dynamic structure factor of the Calogero-Sutherland model
- Electron injection in a nanotube with leads: finite frequency noise-correlations and anomalous charges
- The electron lifetime in Luttinger liquids
- Dephasing from electron fractionalization
- Quantum dot dephasing by edge states
- Transport in a spin incoherent Luttinger liquid
- Frequency-dependent transport through a quantum dot in the Kondo regime
- Short-range correlations and spin-mode velocities in ultrathin one-dimensional conductors
- Interference as a Probe of Spin Incoherence in Strongly Interacting Quantum Wires
- Fermi-edge singularity in a spin-incoherent Luttinger liquid
- Shot noise free conductance reduction in quantum wires